ImageOptimizer
This gem allows you to simply optimize images via jpegoptim or OptiPNG.
Tested against ruby 1.8.7, 1.9.2, 1.9.3, 2.0.0, 2.1.0, ruby-head, jruby-18mode, jruby-19mode, jruby-head, rbx-2.1.0, rbx-2.2.0, and ree
[] (http://travis-ci.org/jtescher/image_optimizer) [] (https://gemnasium.com/jtescher/image_optimizer) [] (https://codeclimate.com/github/jtescher/image_optimizer) [] (https://coveralls.io/r/jtescher/image_optimizer)
Installation
This gem uses the following utilities for optimizing images:
-
jpegoptim, which can be installed from freecode.com
-
OptiPNG, which can be installed from sourceforge.net
Or install the utilities via homebrew:
$ brew install optipng jpegoptim
Then add this line to your application's Gemfile:
gem 'image_optimizer'
And then execute:
$ bundle
Or install it yourself as:
$ gem install image_optimizer
Usage
Optimize PNG or GIF formats:
OptiPNG is a PNG optimizer that recompresses image files to a smaller size without losing any information and performs PNG integrity checks and corrections.
ImageOptimizer.new('path/to/file.png').optimize
Optimize JPEG formats:
jpegoptim provides lossless optimization for JPEG files based on optimizing the Huffman tables. All jpegs will be progressively optimized for a better web experience
ImageOptimizer.new('path/to/file.jpg').optimize
Optimization Options
Quiet optimization
To have optimization performed in quiet mode without logging progress, an optional quiet
parameter may be passed.
Default is false.
ImageOptimizer.new('path/to/file.jpg', quiet: true).optimize
Lossy JPEG optimization
Pass an optional quality
parameter to target a specific lossy JPG quality level (0-100), default is lossless
optimization. PNGs will ignore the quality setting.
ImageOptimizer.new('path/to/file.jpg', quality: 80).optimize
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request